Siemens QRH22B150 - 150 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens QRH22B150 is a 150A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and loadcenters. Built for dependable overcurrent and short-circuit protection, this unit is engineered to perform in demanding electrical environments.

Key features and benefits

• Secure bolt-on mounting: Delivers a rigid, vibration-resistant bus connection that helps maintain consistent electrical contact and reliability.
• Thermal-magnetic trip unit: Combines heat and magnetic sensing for stable, repeatable protection across varying temperatures and fault conditions.
• OEM compatibility: Designed to work seamlessly with matching Siemens loadcenters and panelboards, simplifying replacement and installation with a trusted ecosystem.
• Versatile applications: Suitable for residential, commercial, and light industrial installations requiring robust branch circuit protection.

Specifications at a glance

• Amperage rating: 150A
• Voltage rating: 240V
• Poles: 2
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker

Why this matters for your electrical system

In any panelboard or loadcenter, dependable protection prevents overheating and dangerous short circuits. The QRH22B150 delivers fast, predictable tripping behavior when faults occur, safeguarding conductors, devices, and occupants. The bolt-on design provides a secure, vibration-resistant connection at the bus interface—an important advantage in installations exposed to movement or vibration.

Use cases and scenarios

Ideal for main or branch circuit protection in Siemens-compatible environments. Perfect for service upgrades, subpanels, or adding protection to heavy-load circuits in settings such as residential garages, small offices, retail spaces, or light industrial applications where a 150A, 2-pole breaker is needed.

Buying with confidence

Choose Siemens QRH22B150 when you want a field-proven, OEM-aligned solution that integrates smoothly with your existing Siemens loadcenter ecosystem. This breaker provides reliable, code-ready protection and a cohesive, durable component for your electrical distribution system.